Hunt saboteur Michael Haines, however, said he has seen the law being broken "every single week".

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The Saboteur is a nagging, negative mental manifestation that tries to sabotage your efforts to grow and disrupt your desire to achieve new things.

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After the fall of France in 1940, Mrs Wake became a French Resistance courier and later a saboteur and spy - setting up escape routes and sabotaging German installations, saving hundreds of Allied lives.

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But never before have the two ideas been combined into such a potent weapon: a remotely triggered farting noise that can strike any user who lets his or her phone fall briefly into the hands of a prankster or social saboteur.

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